From: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Tue, 18 Dec 2012 18:31:22 +0000 (-0800)
Subject: drm/i915: BUG() if fences are used on unsupported platform
X-Git-Tag: next-20130218~64^2~24^2~11
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7dbf9d6e0fd8d42398955de119ccba6c35813c88;p=karo-tx-linux.git

drm/i915: BUG() if fences are used on unsupported platform

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index d15c86279d02..ad03dea210bd 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2649,7 +2649,7 @@ static void i915_gem_write_fence(struct drm_device *dev, int reg,
 	case 4: i965_write_fence_reg(dev, reg, obj); break;
 	case 3: i915_write_fence_reg(dev, reg, obj); break;
 	case 2: i830_write_fence_reg(dev, reg, obj); break;
-	default: break;
+	default: BUG();
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 551f370657b7..6ba0573e7f16 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1106,6 +1106,8 @@ static void i915_gem_record_fences(struct drm_device *dev,
 			error->fence[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
 		break;
 
+	default:
+		BUG();
 	}
 }